Marc Riley is an English radio DJ, alternative rock critic, musician, and former music businessman. He currently presents on BBC Radio 6 Music.

BBC Radio 6 Music is a British digital radio station owned and operated by the BBC, specialising primarily in alternative music. In 2002 it was the first national music radio station to be launched by the BBC in 32 years. It is available only on digital media: DAB radio, BBC Sounds, digital television, and throughout northern and western Europe through the Astra 2B satellite.